IETF Logo Mail Archive

Re: [dnsext] draft-mohan-dns-query-xml-00.txt

Mark Andrews <marka@isc.org> Tue, 04 October 2011 14:07 UTC

Return-Path: <marka@isc.org>
X-Original-To: dnsext@ietfa.amsl.com
Delivered-To: dnsext@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3656921F8B6E for <dnsext@ietfa.amsl.com>; Tue, 4 Oct 2011 07:07:11 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.869
X-Spam-Level:
X-Spam-Status: No, score=-1.869 tagged_above=-999 required=5 tests=[AWL=0.430, BAYES_00=-2.599, MIME_8BIT_HEADER=0.3]
Received: from mail.ietf.org ([12.22.58.30]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QldPuxGT2JqI for <dnsext@ietfa.amsl.com>; Tue, 4 Oct 2011 07:07:10 -0700 (PDT)
Received: from mx.ams1.isc.org (mx.ams1.isc.org [IPv6:2001:500:60::65]) by ietfa.amsl.com (Postfix) with ESMTP id B3F6521F8AFB for <dnsext@ietf.org>; Tue, 4 Oct 2011 07:07:10 -0700 (PDT)
Received: from bikeshed.isc.org (bikeshed.isc.org [IPv6:2001:4f8:3:d::19]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (Client CN "bikeshed.isc.org", Issuer "ISC CA" (verified OK)) by mx.ams1.isc.org (Postfix) with ESMTPS id 140155F988D; Tue, 4 Oct 2011 14:09:54 +0000 (UTC) (envelope-from marka@isc.org)
Received: from drugs.dv.isc.org (unknown [IPv6:2001:470:1f00:820:6233:4bff:fe01:7585]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by bikeshed.isc.org (Postfix) with ESMTPSA id DBBB2216C33; Tue, 4 Oct 2011 14:09:51 +0000 (UTC) (envelope-from marka@isc.org)
Received: from drugs.dv.isc.org (localhost [127.0.0.1]) by drugs.dv.isc.org (Postfix) with ESMTP id 78825149C52E; Wed, 5 Oct 2011 01:09:48 +1100 (EST)
To: Måns Nilsson <mansaxel@besserwisser.org>
From: Mark Andrews <marka@isc.org>
References: <CACU5sDnBx5AijEgFXKNPjtcVdtBnBJamsn-f_ye0Jm3TQq0mvw@mail.gmail.com> <201110031713.20103.vixie@isc.org> <58EB32F9-08D2-4579-BC56-1423C00FC371@verisign.com> <201110031816.32959.vixie@isc.org> <EA70785432657FDF8A31D31C@nimrod.local> <alpine.LSU.2.00.1110041159200.16577@hermes-2.csi.cam.ac.uk> <0D33DC3D0533F844E21BE63E@Ximines.local> <20111004125524.GI12306@besserwisser.org>
In-reply-to: Your message of "Tue, 04 Oct 2011 14:55:24 +0200." <20111004125524.GI12306@besserwisser.org>
Date: Wed, 05 Oct 2011 01:09:48 +1100
Message-Id: <20111004140948.78825149C52E@drugs.dv.isc.org>
Cc: Paul Vixie <vixie@isc.org>, dnsext@ietf.org
Subject: Re: [dnsext] draft-mohan-dns-query-xml-00.txt
X-BeenThere: dnsext@ietf.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: DNS Extensions working group discussion list <dnsext.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/dnsext>, <mailto:dnsext-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/dnsext>
List-Post: <mailto:dnsext@ietf.org>
List-Help: <mailto:dnsext-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/dnsext>, <mailto:dnsext-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 04 Oct 2011 14:07:11 -0000

In message <20111004125524.GI12306@besserwisser.org>, =?utf-8?B?TcOlbnM=?= Nils
son writes:
> Subject: Re: [dnsext] draft-mohan-dns-query-xml-00.txt Date: Tue, Oct 04, 2=
> 011 at 12:40:50PM +0100 Quoting Alex Bligh (alex@alex.org.uk):
> >=20
> >=20
> > --On 4 October 2011 12:04:42 +0100 Tony Finch <dot@dotat.at> wrote:
> >=20
> > >You can't increase the DNS message size beyond 64KB.
> >=20
> > I was under the (mis) apprehension that was a UDP limitation, and that
> > large AFXRs could exceed 64KB. Live and learn.
> 
> I've done AXFRen of 1/2 GB zones. Not practical, but doable. The 64K
> limit does not apply to AXFR, but, then again, AXFR is not like the
> other children...
> 
> --=20
> M=C3=A5ns Nilsson     primary/secondary/besserwisser/machina
> MN-1334-RIPE                             +46 705 989668
> Is it NOUVELLE CUISINE when 3 olives are struggling with a scallop in a
> plate of SAUCE MORNAY?

If we ever want to go greater than 64 K, tcp length limits 0..11
make good escape sequences, just encode the number of length bytes
with EDNS signaling to say we handle the longer length encodings.

00 03 XX XX XX
00 04 XX XX XX XX
00 05 XX XX XX XX XX
00 06 XX XX XX XX XX XX
00 07 XX XX XX XX XX XX XX
00 08 XX XX XX XX XX XX XX XX

Mark


-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka@isc.org

v2.23.0 | Report a Bug | By Email